Soldering-iron.



PATBNTBD Nov. 1, 1904.

P. GILBERT.

SOLDERING IRON.

APPLICATION FILED No1/.11,19os.

z SHEETS-s113311.

NO MODEL.

NNW

www

PATENTED NOV. l, 1904.

P. GILBERT.

SOLDERING IRUN.

APPLICATION FILED Nov. 11. 1903.

Z SHEETS-SHEET 2.

` N0 MODEL.

@Vi hamaca @ttoznug UNITED STATES Patented November l, 1904.

PATENT OEEICE.

SOLDERlNG-IRON.

SPECIFICATION forming part of Letters Patent No. 774,064, dated NovemberA1, 1904. Application filed November 11, 1903. Serial No. 180,773. (Nomodel.)

To all whom, it may concern:

Be it known that I, PEARL GILBERT, a citi- Zen of the United States,residing at Boston, in the county of Sudolk and State of Massachusetts,have invented new 'and useful lmprovements in Soldering-Irons, of whichthe following is a specification.

My invention relates to improvements in self-heating soldering-irons;and the object is to provide an implement of the kind named which isadapted to burn either gas or gasolene as a fuel for heating the iron.Another object is to simplify and improve the existing art.

The invention embodies a gas or gasolene cylinder, a pressure-pump inthe cylinder, a jet-nozzle, a heating-coil to feed the jet-nozzle, anair cylinder or tube, and asoldering-tip held in the air-tube.

The invention also resides in the novel con struction of parts and theiraggroupment in operative combination, as will be hereinafter fullyspecified, and the novelty particularly pointed out and distinctlyclaimed.

I have fully and clearly illustrated my improvements in the annexeddrawings, to be taken as a part of this specification, and wherein likeparts appearing in the several illustrations are designated by similarnotations, and, reference being had to the drawings, Figure l is a sideview of the complete ini'- plement. 'Fig 2 is a longitudinal centralsection through the gas or gasolene cylinder, the pump, and the pipes ortubes and showing the stern of the needle-valve and the means forlocking the pump piston-rod in the pump, the handle-tube portion o' thepipes being broken off. The broken-off parts are shown in Fig. 7. Fig. 3is a rear end view of the cylinder or gasolene-receptacle, showing thefinger-pieces of the parts carried by the head of the cylinder. Fig. 4is a transverse section through the cylinder, taken on the line 4 4 ofFig. 2. Fig. 5 is a cross-section through the several pipes andvalve-stem, taken on the -line 5 5 of Fig. 2. Fig. 6 is a side view ofthe device minus the tip-sleeve and the handle-sleeve and illustratingthe application to the feed-tube of a starting-pan for effecting the edinto the ends, as shown.

preliminary heating of the jet-nozzle. Fig. 7 is a longitudinal centralsection through the rearward portion ofthe implement, showing thejet-nozzle and the feeding-coil, the forward portion of the implementbeing illustrated by a similar view in Fig. 2. Fig. 8 is a crosssectiontaken on line 8 8 of Fig. 7. Fig. 9 is a cross-section through the mainpipe or barrel of the implement and face view of the shield-disk forprotecting the hand of the workman from the heat. Fig. 10 is alongitudinal vertical central section through the gasolene-pan. Fig. 11is a side view of a portion of the cylinder, showing the connectinggas-tube attached. Fig. 12 is a detail View showing a triangularsoldering-tip secured in the tube.

In the drawings similar parts appearing in the several illustrations aredesignated by like reference notations.

The parts are all made of metal and preferably of a non-corrodiblecharacter, such as brass, except the soldering-tip, which is made ofcopper or any proper metallic composition adapted to the purpose.

A designates a cylinder of such diameter and capacity as will suit it tothe uses desired. This cylinder constitutes the receptacle for gas orfor a hydrocarbon uid to be volatilized or vaporized at the jet-nozzle.The cylinder is provided with substantial heads l 2, thread- The head lis provided with a filling aperture 3, closed when gasolene is used asthe heating agent by athreaded plug 4. Because the implement may be usedwith gas as the heating agent a suitable gas-plug connection is providedscrewed into the filling-aperture and formed with a suitable stem 6, tobe secured in the end of any flexible gas-tube. Aturning plug? regulatesand shuts off the iiow of gas, and suitable gashose or other tube can beused to carry the gas into the cylinder. In the cylinder is disposed anair-pump 8, arranged longitudinally in the cylinder and of such powerand capacity as may be desired.` The ends of thebarrel of the pump areclosed by 'threaded plugs 9 10, and the pump-barrel is secured in placeby having its outer end threaded in the head 1 of the cylinder. The plug1() is made with a series of air-passages 11, through which air isforced into the cylinder. 1n the inner end of the pump-barrel 8 isarranged a valve-casing 13, opening at its outer end into the pumpbarrelthrough passages in the end of the valve-casing, as at 14, and in thisvalve casing or chamber is formed a valve-seat with which engages aspring-actuated check-valve 15. In the pump is arranged a piston blockor plunger 16, in which is a central socket 17, having communicatingair-passages 18, opening through the inner end of the piston-head. 19designates the piston-rod let through the plug 9 and made hollow for adistance at its inner end portion, into which an air-aperture 2()communicates to admit air above the pistonhead. The finger-piece 19u ofthe piston-rod is screw-threaded at its inner end, as shown, and engagesin a threaded socket in the plug 9, whereby the piston rod may be lockedagainst movement, as desired. In the socket of the piston-head is placeda spring-actuated check-valve 21, which closes the inner end or' thepiston-rod and prevents the escape of air when the piston is forcedinward. A suitable packing-ring 22 .is mounted on the piston-rod, and aretaining-ring' 23 holds and clamps the packing-ringin position. rlhepurpose of this pump is to pump air into the cylinder to create pressureon the gasolene or gaseous fluid when that is used as the heating mediumin l order to force it through the burner.

The head 2 is provided with wrench-sockets 24 to afford means forapplying a suitable wrench to detach and attach the head, and in thecenter this head 2 is provided with a threaded hole 25, in which thescrew-threaded inner end of the feed-tube 26 is secured, and in theouter end of the feed-tube is secured by threaded connections ajet-nozzle 27, in which is formed a valve chamber and seat 28, fromwhich leads a suitable passage 29, opening through the end of thejet-nozzle. The jet-nozzle 27 is provided with a gas-passage 30, whichleads into a heating-coil 31, positioned as indicated, and the returnbranch of which leads into a passage 32 in the burner, thence throughthe passage in the jet-nozzle to the gas-chamber and against thesolderingtip. Projected through the head 1 ot' the cylinder andextending through the cylinder and into the feed-tube 26 is a stein orrod 34, which has its lower portion screw-threaded. The end of the rod34 is formed conical, as at 36, to set in the valve-seat 28, asindicated in Fig. 7 of the drawings, so that by screwing the rod intothe jet-nozzle 27 the flow of gas or gasolene to the jet-nozzle may beregulated to suit, or the How may be entirely shut off.

37 designates the handle tube or sleeve, made of larger diameter thanthe feed-tube 26 and arranged thereon with its inner end adjacent to thecylinder head 2 and its outer end made conical, as at 38, to serve as adeliector to concentrate the burning gases and direct them into the bowlof the soldering-tip. At 39 the handle-tube is provided with a pluralityof air-holes to let air into the tube. On the handle-tu belis adjustablymounted a broad ring-disk 40, which serves as a protecting-shield tokeep the heat from the hand ot' the workman.

41 designates the outer tube, which constitutes the element whichsupports the soldering-tip. This tube is of greater diameter than thehandle-tube 37, over which it is arranged, as shown, with its open endclosely adjacent to the air-holes 39 in the handle-tube. rlhe outer endof the tube 41 is provided with interior screw threads to engage withthe threads made on the end of the soldering-tip.

42 designates the soldering-ti ps, which may be of any desirableshape-conical, straight, or oblique, round or polygonal-but formed inthe body with a bowl-shaped depression 43 and a threaded iiange 44 toengage with the coincident threads in the tube 41, as shown in thedrawings. The feed-tube and the jetnozzle are held centrally in thehandle-tube by means of short screw-studs 45, let radially through thelatter, with their inner ends bearing' against the former, and adjacentto the rear open ends ot' the handle-tube and the soldering-tip tubecollars 46 47 are respectively mounted, and through these collars areprojected th umh-screws 48, which bear against the respective tubes, asshown, and seat and clamp the tubes against the ends of the radial studsor short screws. 1t lwill thus be seen that the soldering-tip sleeve andthe handlesleeve may both be removed from the feedtube and jet-nozzle bysimply loosening up the thumb-screws and then slipping the tubes oii.This removal is necessary in the preliminary heating of the jet-nozzle,and to accomplish this preliminary heating I have provided thefollowing-described device: 49 designates a U-shaped strap the bend ofwhich conforms to the curve of the filling-tube of the implement and thelimbs of which extend parallel with each other. Between the extendedlimbs is arranged a gasolene-pan 50 of such capacity and length as maybe required. One end of the pan is formed with an end block 51, whichsets between the straps and is there held by a clamping-screw 52, letthrough the parts, as shown. Now when the preliminary heating is to bemade the pan is turned intoaposition which brings it parallel with thejet-nozzle, as shown in the drawings, and supplied with a charge ofgasolene obtained either from the pressure in the cylinder or from acan, and then lighting the fluid the jet-nozzle is soon heated to therequired temperature to produce vaporization. The pan can then bedetached and the iet-nozy zle arranged and secured in its operativerelation to the other members of the implement.

It' gasolene is the heating medium, the cyl- IOO inder is rst lled withthe fluid and then the pump is operated to create the desired pressure.The handle-tube is then removed from the implement and the gasolene-panattached to the filling-tube. The preliminary heating of the jetnozzlethen is proceeded with. lVhen the jet-nozzle begins to discharge theburning vapor, the pan is removed and the handle-tube replaced inposition. Then after the needle-valve has been adjusted if thev vaporshave ceased to burn they may be lighted by holding a burning match atthe air-holes or between the end of the tube 41 andl the shield 40, andthen after the vapor begins to burn the ignition will continue until thesupply of fuel is exhausted or until the valve 36 shuts the supply o.

If illuminating-gas is the medium of heating, the gas-connection plug 5is fixed in the billing-aperture of the cylinder, the valve 36 isopened, and the gas is lighted, as above mentioned.

rlhe parts shown in Fig. 6 are the same in all respects as correspondingparts shown in the other lgures, it being understood that thehandle-tube and tip-sleeve are not therein indicated, the one additionbeing that of the pan 50, which is employed for the preliminary heatingof the device.

Having thus fully described the invention, what is claimed as new isl. Asoldering implement comprising a charging-receptacle, a pump in thereceptacle to create air-pressure on the charge, a feedtube leading fromthe receptacle, a jet-nozzle carried by the said tube, a valve toregulate the liow of the heating medium through the nozzle to thesoldering-tip, a handle-tube inclosing the feed-tube, and a tubularsupport having a rear open end into which the rear handle-tube andjet-nozzle project and provided at its front end with a soldering-tipinto which the heat is delivered.

2. A soldering' implement comprising a receptacle to contain a volatilefuel, an air-pump in the receptacle, a feed-tube leading from thereceptacle, a valve carried by the feed-tube, a jet-nozzle carried bythe valve-casing, a handle-sleeve surrounding the feed-tube, and ofgreater diameter and extending beyond the jet-nozzle, a tip-supportingsleeve of greater diameter and surrounding the lower portion of thehandle-tube into which the latter and jet-nozzle project and having arear open end for the admission of air thereto in rear of the point ofcombustion, and a soldering-tip secured in the end of the tip-supportingtube.

3. A soldering implement, comprising a cylindrical receptacle, means tointroduce a gaseous fuel into the receptacle, a feed-tube leading fromthe receptacle, a jet-nozzle in the end of the feed-tube formed with avalveseat and outlet and inlet gas-passages, a heating-coilcommunicating with the jet-nozzle, a valve-rod projected through thereceptacle and extending into the feed-tube and having its end formed toclose the valve-seat, a handletube of greater diameter than thefeed-tube arranged on the latter and extending beyond the jet-nozzle, asoldering-tip-supporting tube of greater diameter than the handle-tubeand arranged on the lower end of said handle-tube and having a rear openend, the remaining part of the supporting-tube being closed, and asoldering-tip formed with a bowl-recess in its inner end and secured inthe tip-supporting tube.

4. A soldering implement comprising a gaseous-fuel receptacle, afeed-tube extending from the receptacle, a jet-nozzle secured in the endof the feed-tube and formed with a valve-seat, and outlet and inletgas-passages, a heating-coil communicating with the said passages, avalve engaging in said valve-seat and having a stem projected throughthe receptacle, a handle-tube of greater diameter than the feed-tube andarranged thereon and extending beyond the en d of the jet-nozzle, asoldering-tip-supporting tube of greater diameter than the handle-tube,having a rear open end for the admission of air in rear of the point ofcombustion and arranged on the lower end portion of the same, asolderingtip held in the supporting-tubemeans to hold the tube inrelative position, and a shield adjustably secured on the handle-tube inrear of the tip-supporting tube.

5. ln a soldering implement of the character set forth, the combinationwith a handletube having a rear open end and a tip-supporting tubedisposed in operative relation thereto, of a shield secured on thehandle-tube adjacent to the lower end of the tip-supporting tube.

1n testimony whereof I aflx my signature in presence of two witnesses.

PEARL GlLBERT.

Witnesses: l

JEssIn A. KING, GEORGE M. BOND.

IOO

